SUMMARY: This document proposes amendments to Federal Motor Vehicle Safety Standard (????FMVSS????) No. 108; Lamps@ reflective devices@ and associated equipment@ to permit the certification of adaptive driving beam headlighting systems@ if the manufacturer chooses to equip vehicles with these systems. Toyota Motor North America@ Inc. (Toyota) petitioned NHTSA for rulemaking to amend FMVSS No. 108 to permit manufacturers the option of equipping vehicles with adaptive driving beam systems. NHTSA has granted Toyota??s petition and proposes to establish appropriate performance requirements to ensure the safe introduction of adaptive driving beam headlighting systems if equipped on newly manufactured vehicles.